You're free to use this song and monetize your video, but you must include the following in your video description:
B - Somber Ballads by Kevin MacLeod is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://incompetech.com/

Copy the code and paste in your html document to share video on your page.
To customize the size of the player as per your requirements change the width and height in the given code. To stop autoplay video change autoplay=false.